Decompose the terms in the sum as
so there are 20 terms in the sum. Then our sum simplifies to
Now, if
we can reverse the order of terms to get the same sum,
so that doubling up the sum gives
So, our sum evaluates to
15, first, you divide 6 by 4 and that will give you how many words Ravi can type per second, then multiply by 10.
Answer:
400 x however long those ribbons are
Step-by-step explanation:
1 meter is 100 centimeters, and there are four rolls. so 4x100 equals 400, and you multiply that by the length that you didn't provide.
Answer:
7.34×10⁰
Unless you're missing something in your question then that'd be it I guess... There isn't really a reason to put 7.34 in scientific notation though, so I'm assuming something isn't loading for me (or the question was changed).
Distribute
8-2t-2=-3t+1
Combine like terms
-2t+6=-3t+1
Add 3t to both sides
t+6=1
Subtract 6 from both sides
t=-5
Final answer: t=-5
